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3 Commits

Author SHA1 Message Date
Andre Przywara
941a956b0e hwmon: (fam15h_power) Increase output resolution 
On high CPU load the accumulating values in the running_avg_cap
register are very low (below 10), so averaging them too early leads
to unnecessary poor output resolution. Since we pretend to output
micro-Watt we better keep all the bits we have as long as possible.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
 2012-03-23 10:02:17 +01:00
Andreas Herrmann
fc0900cbda hwmon: (fam15h_power) Correct sign extension of running_avg_capture 
Wrong bit was used for sign extension which caused wrong end results.
Thanks to Andre for spotting this bug.

Reported-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@vger.kernel.org
 2012-03-23 10:02:17 +01:00
Andreas Herrmann
512d1027a6 hwmon: Add driver for AMD family 15h processor power information 
This CPU family provides NB register values to gather following
TDP information

* ProcessorPwrWatts: Specifies in Watts the maximum amount of power
  the processor can support.
* CurrPwrWatts: Specifies in Watts the current amount of power being
  consumed by the processor.

This driver provides

* power1_crit (ProcessorPwrWatts)
* power1_input (CurrPwrWatts)

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
 2011-05-25 20:43:31 +02:00